diff -NurbP --minimal linux-2.4.22-pre3/include/linux/nfs.h linux-2.4.22-pre3-fix/include/linux/nfs.h
--- linux-2.4.22-pre3/include/linux/nfs.h	Sat Apr  1 18:04:27 2000
+++ linux-2.4.22-pre3-fix/include/linux/nfs.h	Wed Jul  9 22:39:37 2003
@@ -30,6 +30,9 @@
 #define NFS_MNT_PROGRAM	100005
 #define NFS_MNT_PORT	627
 
+#define NFS_MAJOR   	UNNAMED_MAJOR
+#define NFS_MINOR   	0xff
+
 /*
  * NFS stats. The good thing with these values is that NFSv3 errors are
  * a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
diff -NurbP --minimal linux-2.4.22-pre3/init/do_mounts.c linux-2.4.22-pre3-fix/init/do_mounts.c
--- linux-2.4.22-pre3/init/do_mounts.c	Sun Jul  6 22:55:07 2003
+++ linux-2.4.22-pre3-fix/init/do_mounts.c	Wed Jul  9 22:41:43 2003
@@ -88,7 +88,7 @@
 	const char *name;
 	const int num;
 } root_dev_names[] __initdata = {
-	{ "nfs",     0x00ff },
+	{ "nfs",     MKDEV(NFS_MAJOR, NFS_MINOR) },
 	{ "hda",     0x0300 },
 	{ "hdb",     0x0340 },
 	{ "loop",    0x0700 },
@@ -759,7 +759,8 @@
 static void __init mount_root(void)
 {
 #ifdef CONFIG_ROOT_NFS
-	if (MAJOR(ROOT_DEV) == UNNAMED_MAJOR) {
+       if (MAJOR(ROOT_DEV) == NFS_MAJOR
+           && MINOR(ROOT_DEV) == NFS_MINOR) {
 		if (mount_nfs_root()) {
 			sys_chdir("/root");
 			ROOT_DEV = current->fs->pwdmnt->mnt_sb->s_dev;